论文标题
具有可变二聚体密度的三角晶格量子二聚体模型
Triangular lattice quantum dimer model with variable dimer density
论文作者
论文摘要
已知量子二聚体模型可以容纳拓扑量子自旋液相，并且最近可以用被困在光学镊子阵列中的rydberg原子模拟此类模型。在这里，我们在三角形晶格量子二聚体模型的扩展上介绍了大规模的量子蒙特卡洛模拟结果，该模型在汉密尔顿灭绝并创建单二聚体中的术语。我们发现独特的奇数，甚至$ \ mathbb {z} _2 $旋转液体，以及几个没有拓扑顺序的阶段：交错的晶体，列中阶段和一个琐碎的对称相，没有明显的断裂对称性。我们还提出了这些相的动态光谱，并注意了对Rydberg原子实验的含义。
Quantum dimer models are known to host topological quantum spin liquid phases, and it has recently become possible to simulate such models with Rydberg atoms trapped in arrays of optical tweezers. Here, we present large-scale quantum Monte Carlo simulation results on an extension of the triangular lattice quantum dimer model with terms in the Hamiltonian annihilating and creating single dimers. We find distinct odd and even $\mathbb{Z}_2$ spin liquids, along with several phases with no topological order: a staggered crystal, a nematic phase, and a trivial symmetric phase with no obvious broken symmetry. We also present dynamic spectra of the phases, and note implications for experiments on Rydberg atoms.
